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Sun Country Pet Policy – Airlines Travel Rules 2025

By flightshelpcenter

Published on September 18, 2025

Sun Country Airlines follows one of the simplest and strictest pet policies among U.S. carriers. The Sun Country pet policy allows only small dogs and cats in the cabin and does not offer any cargo pet travel at all.

Pets can fly only on domestic routes within the 48 contiguous U.S. states, and they must travel in a soft-sided, under-seat carrier that meets Sun Country’s size limits. Because availability is limited and online booking is not supported, travelers must call to reserve pet space in advance.

This guide explains Sun Country’s pet-in-cabin policy, route restrictions, carrier requirements, fees, and the rules that determine whether your pet can fly. If you’re unsure about eligibility, carrier fit, or flight availability, you can get assistance through the Sun Country flight help center at +1 (866) 558-3017.

Quick Overview: Sun Country Pet Policy (2025)

Sun Country Airlines permits small dogs and cats in the cabin only, with no cargo pet service available for any route. Pets may fly only on domestic flights within the lower 48 states and must stay inside a soft-sided, under-seat carrier for the entire journey. Space for pets is limited and cannot be booked online, so travelers must reserve by phone. This guide covers Sun Country’s pet policy, carrier rules, seat restrictions, and fees. For booking support or eligibility checks, call +1 (866) 558-3017.

Key Highlights:

In-cabin only (no cargo pet service)
Only small dogs and cats qualify
Domestic lower-48 routes only
Soft-sided, under-seat carrier required
$100–$125 per direction
Advance booking required by phone
Pet counts as your carry-on item
Strict “remain in carrier” rule

Keeps its the Sun Country pet rules firm, but the process stays smooth when you prepare ahead.

Sun Country Airlines Pet Policy – How It Works

Sun Country’s pet policy focuses on simplicity and safety. Because the airline does not operate a large fleet with cargo-ready infrastructure, its pet travel program applies only to small animals that fit in the cabin. This makes the policy narrow, but easy to understand.

The airline accepts:

Small dogs
Small cats

The pet must stay inside a closed, airline-approved carrier at all times during boarding, taxi, takeoff, landing, and inflight. Sun Country currently does not accept birds, rabbits, guinea pigs, or exotic animals in the cabin.

If your pet is not a small dog or cat that can fit under the seat, Sun Country will not be able to transport them—either in the cabin or in cargo. If you are unsure whether your pet qualifies, you can call the Sun Country help line or get assistance at +1 (866) 558-3017.

How Strict Is Sun Country With In-Cabin Pets?

Sun Country is firm and consistent about its pet policy because the airline must ensure under-seat clearance and safety on its limited aircraft configurations. Travelers often describe Sun Country as “quite strict” in three areas:

Carrier Size

Agents check carrier size closely. The recommended maximum is:
16″ long × 11″ wide × 8″ high.

A carrier that appears too tall, too rigid, or unable to slide fully under the seat may cause boarding denial.

Route Restrictions

Only flights within the lower 48 states accept pets. Sun Country enforces this rule strictly.

No pets allowed on:

International flights
Alaska
Puerto Rico
U.S. Virgin Islands

Pet Behavior & Containment

Your pet must remain inside the closed carrier for the entire flight. Sun Country enforces this rule without exceptions.

Because of these strict limitations, passengers often confirm details before booking through the help center at +1 (866) 558-3017.

Sun Country Pet In-Cabin Policy: Carrier Requirements

Sun Country requires a soft-sided carrier that fits fully under the seat in front of you. Your pet must be able to stand, turn naturally, and lie down comfortably without pressure against the sides.

Approved Carrier Features

Soft-sided and flexible
Leak-proof bottom
Secure zipper or closure
Adequate ventilation
Fits within 16″ x 11″ x 8″
One pet per carrier

The carrier counts as your carry-on item, so you may bring only one additional personal item.

Sun Country Pet Fees (2025)

Sun Country charges between $100 and $125 each way for an in-cabin pet. The fee is:

Non-refundable
Charged per direction
Collected at the airport

Walk-up fees may be higher if you do not reserve in advance. Because spots for pets are limited, booking early by phone is essential.

Sun Country Pet Policy Cargo – Important Rule

Sun Country does not transport pets in cargo under any circumstances.

This includes:

No checked pets
No cargo pet service
No kennel transport
No exceptions

If your pet is too large for a cabin carrier, you must consider an alternative airline that offers cargo pet transportation. Travelers often call +1 (866) 558-3017 for help finding airline alternatives when Sun Country cannot accommodate their pet.

Where Sun Country Does NOT Allow Pets

Pets are not allowed on the following routes:

Any international destination
Alaska (ANC)
Puerto Rico (SJU)
U.S. Virgin Islands (STT, STX)

These routes either involve aircraft restrictions or destination rules that Sun Country cannot support for in-cabin pets.

Service Animals on Sun Country

Sun Country welcomes trained service animals free of charge. However, documentation is required, including DOT forms submitted at least 48 hours prior to departure.

Service animals must:

Fit within the handler’s foot space
Remain harnessed
Behave appropriately

Emotional support animals are not considered service animals under current DOT rules.

How to Book a Pet on Sun Country Airlines?

Sun Country does not allow online pet booking, so you must call the airline to add a pet to your reservation. Because space for in-cabin pets is limited, booking early is essential to avoid availability issues.

Here’s the simplest way to complete the process:

Confirm your route qualifies — only flights within the lower 48 states accept pets.
Reserve your pet space as early as possible since Sun Country limits the number of pets allowed on each flight.
Bring an approved soft-sided carrier that fits under the seat and meets Sun Country’s sizing requirements.
Pay the in-cabin pet fee at check-in, as Sun Country collects this fee at the airport.

If any part of your itinerary includes a non-eligible destination, Sun Country will not allow your pet to travel in the cabin. For help confirming availability or eligibility, travelers often call +1 (866) 558-3017 before finalizing their booking.

Conclusion

Sun Country’s pet policy is clear but very limited: only small dogs and cats, only in the cabin, and only on flights within the lower 48 states. While the airline stays firm about its size restrictions and route limitations, most travelers find the process easy when they book early and use an approved carrier.

If you’re unsure whether your pet qualifies or you need help choosing a pet-friendly itinerary, support is available at +1 (866) 558-3017.

Frequently Asked Questions

What pets does Sun Country allow in the cabin?

Sun Country allows only small dogs and cats in the cabin. Other animals—such as birds, rabbits, or reptiles—
are not permitted. Pets must fit in a soft-sided carrier that fits under the seat.

Does Sun Country allow pets in cargo?

No. Sun Country does not provide checked pet service or cargo transportation for animals.
If your pet is too large for an under-seat carrier, you must fly with another airline.

What size carrier fits under a Sun Country seat?

Sun Country recommends soft-sided carriers with maximum dimensions of
16″ L × 11″ W × 8″ H. The carrier must fit completely under the seat and allow your pet to move comfortably.

How much does Sun Country charge for a pet?

Sun Country charges $100–$125 each way for in-cabin pets. Fees are collected at check-in, and
walk-up fees may be higher if you do not reserve pet space in advance.

Can pets fly with Sun Country on international routes?

No. Pets are not allowed on Sun Country’s international flights or flights to Alaska, Puerto Rico, or
the U.S. Virgin Islands. Only domestic flights within the lower 48 states accept in-cabin pets.

Do pets count as a carry-on item on Sun Country?

Yes. Your pet carrier counts as your carry-on bag, so you may bring only one additional personal item.

Does Sun Country allow two pets in one carrier?

No. Sun Country allows only one pet per carrier and one carrier per passenger.

Do service animals fly free on Sun Country?

Yes. Trained service animals may travel free of charge. DOT documentation must be submitted at least
48 hours before departure.

How do I book a pet on Sun Country?

You must call Sun Country directly to reserve pet space. If availability is unclear, many travelers get
assistance by calling +1 (866) 558-3017 to confirm eligibility and booking.